title: Delayed response of interfacial tension in propagating chemical waves of the Belousov-Zhabotinsky reaction without stirring.
abstract: Time-resolved measurements of the interfacial tension of propagating chemical waves of the Belousov-Zhabotinsky reaction based on the iron complex catalysts were carried out without stirring by monitoring the frequency of capillary waves with the quasi-elastic laser scattering method. A delayed response of the interfacial tension with respect to absorption was found with the delay being ligand-dependent when the reaction was conducted at a liquid/liquid interface. This behavior is attributed to differences in adsorption activity of the hydrophobic metal catalyst. The delay time and the increase in interfacial tension were also reproduced by a model considering the rate constants of equilibrium adsorption.
authors.affiliation: Department of Applied Chemistry and Biotechnology, Chiba University , 1-33 Yayoi, Inage, Chiba 263-8522, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Tanaka
authors.forename: Tomonori
authors.initials: T
authors.lastname: Nomoto
authors.forename: Taro
authors.initials: T
authors.lastname: Toyota
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kitahata
authors.forename: Masanori
authors.initials: M
authors.lastname: Fujinami